Watch for post-harvest grain pests

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Published: August 16, 2023

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Watch for post-harvest grain pests

As farmers prepare to put their next crop into storage, the Canadian Grain Commission (CGC) has some tips to help identify insects (and know if they’re pests) if they appear in stored grain.

The commission identifies 20 species of insects as primary pests (19 beetle species and one species of moth). Over 33 species are considered to be secondary pests (21 beetle species, 11 moth species, booklice and grain mites).

Information needed to identify these pests can be found at the CGC website.

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If there are pests in grain, control options include approved insecticides and physical control methods like lowering grain temperature through aeration.

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